NOAA's Response and Restoration Blog

An inside look at the science of cleaning up and fixing the mess of marine pollution


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Redrawing the Coast After Sandy: First Round of Updated Environmental Sensitivity Data Released for Atlantic States

Contsruction equipment moves sand to rebuild a New Jersey beach in front of houses damaged during Hurricane Sandy.

In Brick, New Jersey, construction crews rebuild the beaches in front of homes damaged by Hurricane Sandy. This huge storm actually changed the shape of shorelines up and down the East Coast. (Federal Emergency Management Agency/FEMA)

This is a post by the Office of Response and Restoration’s Jill Petersen.

In 2012 Hurricane Sandy brought devastating winds and flooding to the Atlantic coast. In some parts of New Jersey, flood waters reached nearly 9 feet. Up and down the East Coast, this massive storm actually reshaped the shoreline.

As a result, we’ve been working to update our Environmental Sensitivity Index (ESI) maps to reflect the new state of Atlantic shorelines. These maps and data give oil spill planners and responders a quick snapshot of a shoreline’s vulnerability to spilled oil.

This week, we released the digital data, for use within a Geographic Information System (GIS), for the first regions updated after Hurricane Sandy. Passed the January following Sandy, the Disaster Relief Appropriations Act of 2013 provided funds to update ESI maps for eleven Atlantic coast states, ranging from Maine to South Carolina. For this project, we grouped the states into seven regions.

The GIS data for the regions released this week cover South Carolina and portions of New York and New Jersey, including the Hudson River, south Long Island, and the New York–New Jersey metropolitan area. For these two regions, we mapped more than 300 oil-sensitive species and classified over 17,000 miles of shoreline according to their sensitivity to spilled oil.

Updated GIS data and PDF maps for the remaining regions affected by Sandy will be available in the coming months.

Time for a Change

The magnitude of the overall effort has been unprecedented, and provided us with the opportunity to revisit what was mapped and how, and to update the technology used, particularly as it relates to the map production.

Our first Environmental Sensitivity Index maps were produced in the early 1980s and, since that time, the entire U.S. coast has been mapped at least once. To be most useful, these data should be updated every 5–7 years to reflect changes in shoreline and species distributions that may occur due to a variety of things, including human intervention, climate change, or, as in this case, major coastal storms.

In addition to ranking the sensitivity of different shorelines (including wetlands and tidal flats), these data and maps also show the locations of oil-sensitive animals, plants, and habitats, along with various human features that could either be impacted by oil, such as a marina, or be useful in a spill response scenario, such as access points along a beach.

New Shores, New Features

A street sign is buried under huge piles of sand in front of a beach community.

In the wake of Sandy, we’ve been updating our Environmental Sensitivity Index maps and data and adding new features, such as storm surge inundation data. Hurricane Sandy’s flooding left significant impacts on coastal communities in eleven Atlantic states. (Federal Emergency Management Agency/FEMA)

To gather suggestions for improving our ESI maps and data, we sent out user surveys, conducted interviews, and pored over historical documentation. We evaluated all suggestions while keeping the primary users—spill planners and responders—at the forefront. In the end, several major changes were adopted, and these improvements will be included in all future ESI maps and data.

Extended coverage was one of the most requested enhancements. Previous data coverage was focused primarily on the shoreline and nearshore—perhaps 2–3 miles offshore and generally less than 1 mile inland. The post-Sandy maps and data extend 12 nautical miles offshore and 5 miles inland.

This extension enables us to include data such as deep water species and migratory routes, as well as species occurring in wetlands and human-focused features found further inland. With these extra features, we were able to incorporate additional hazards to the coastal environment. One example was the addition of storm surge inundation data, provided by NOAA’s National Hurricane Center, which provide flood levels for storms classified from Category 1 to Category 5.

We also added more jurisdictional boundaries, EPA Risk Management Facilities (the EPA-regulated facilities that pose the most significant risk to life or human health), repeated measurement sites (water quality, tide gauges, Mussel Watch sites, etc.), historic wrecks, and locations of coastal invasive species. These supplement the already comprehensive human-use features that were traditionally mapped, such as access points, fishing areas, historical sites, and managed areas.

The biological data in our maps continue to represent where species occur, along with supporting information such as concentration, seasonal variability, life stage and breeding information, and the data source. During an oil spill, knowing the data source (e.g., the U.S. Fish and Wildlife Service) is especially important so that responders can reach out for any new information that could impact their approach to the spill response.

A new feature added to the biological data tables alerts users as to why a particular species’ occurrence may warrant more attention than another, providing context such as whether the animals are roosting or migrating. As always, we make note of state and federal threatened, endangered, or listed species.

Next up

Stay tuned for the digital data and PDF maps for additional Sandy-affected regions. While the updated PDF maps will have a slightly different look and feel than prior ones, the symbology and map links will be very familiar to long-time users.

In the meantime, we had already been working on updating ESI maps for two regions outside those funded by the Disaster Relief Appropriations Act. These regions, the outer coast of Washington and Oregon and the state of Georgia, have benefited from the general improvements brought about by this process. As of this week, you can now access the latest GIS data for these regions as well.

Jill PetersenJill Petersen began working with the NOAA spill response group in 1988. Originally a programmer and on-scene responder, in 1991 her focus switched to mapping support, a major component of which is the ESI program. Throughout the years, Jill has worked to broaden the ESI audience by providing ESIs in a variety of formats and developing appropriate mapping tools. Jill has been the ESI program manager since 2001.


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How Do We Use Satellite Data During Oil Spills?

This is a post by NOAA’s George Graettinger with Amy MacFadyen.

A view of the Deepwater Horizon oil spill from NASA's Terra Satellites.

A view of the Deepwater Horizon oil spill from NASA’s Terra Satellites on May 24, 2010. When oil slicks are visible in satellite images, it is because they have changed how the water reflects light, either by making the sun’s reflection brighter or by dampening the scattering of sunlight, which makes the oily area darker. (NASA)

Did you know satellites measure many properties of the Earth’s oceans from space? Remote sensing technology uses various types of sensors and cameras on satellites and aircraft to gather data about the natural world from a distance. These sensors provide information about winds, ocean currents and tides, sea surface height, and a lot more.

NOAA’s Office of Response and Restoration is taking advantage of all that data collection by collaborating with NOAA’s Satellite and Information Service to put this environmental intelligence to work during disasters such as oil spills and hurricanes. Remote sensing technology adds another tool to our toolbox as we assess and respond to the environmental impacts of these types of disasters.

In these cases, which tend to be larger or longer-term oil spills, NOAA Satellites analyzes earth and ocean data from a variety of sensors and provides us with data products such as images and maps. We’re then able to take that information from NOAA Satellites and apply it to purposes ranging from detecting oil slicks to determining how an oil spill might be impacting a species or shoreline.

Slick Technology

During an oil spill, observers trained to identify oil from the air go out in helicopters and planes to report an oil slick’s exact location, shape, size, color, and orientation at a given time. Analogous to this “remote sensing” done by the human eye, satellite sensors can help us define the extent of an oil slick on the ocean surface and create a target area where our aerial observers should start looking for oil.

In the case of a large oil spill over a sizable area such as the Gulf of Mexico, this is very important because we can’t afford the time to go out in helicopters and look everywhere or sometimes weather conditions may make it unsafe to do so.

The three blue shapes represent the NOAA oil spill trajectory for May 17, 2010, showing potential levels of oiling during the Deepwater Horizon oil spill. The green outline represents the aerial footprint or oil extent for the same day, which comes from the NOAA satellite program. All of these shapes appear on a NASA MODIS Terra Satellite background image, as shown in our online response mapping program ERMA.

The three blue shapes represent the NOAA oil spill trajectory for May 17, 2010, showing potential levels of oiling during the Deepwater Horizon oil spill. The green outline represents the aerial footprint or oil extent for the same day, which comes from the NOAA satellite program. All of these shapes appear on a NASA MODIS Terra Satellite background image, as shown in our online response mapping program ERMA. (NOAA)

Satellite remote sensing typically provides the aerial footprint or outline of the surface oil (the surface oiling extent). However, oil slicks are patchy and vary in the thickness of the oil, which means having the outline of the slick is useful, but we still need our observers to give us more detailed information. That said, we’re starting to be able to use remote sensing to delineate not just the extent but also the thickest parts of the slicks.

Armed with information about where spilled oil may be thickest allows us to prioritize these areas for cleanup action. This “actionable oil” is in a condition that can be collected (via skimmers), dispersed, or burned as part of the cleanup process.

You can see how we mapped the surface oiling extent during the Deepwater Horizon spill based on data analyses from NOAA Satellites into our online response mapping program ERMA.

A Model for the Future

A common use of remotely sensed data in our work is with our oil spill models. Reports of a slick’s extent from both satellite sensors and aerial observers, who report additional information about constantly changing oil slicks, helps our oceanographers improve the forecasts of where the oil will be tomorrow.

Just as weather forecasters continually incorporate real-time observations into their models to improve accuracy, our oceanographers update oil spill trajectory models with the latest overflights and observations of the surface oiling extent (the area where oil is at a given moment). These forecasts offer critical information that the Coast Guard uses to prioritize spill response and cleanup activities.

A Sense of Impact

Oil at the water's surface in a boat wake.

The 2010 Deepwater Horizon oil spill provided us with a number of new opportunities to work with remotely sensed data. One use was detecting the outline of oil slicks on the ocean surface. (NOAA)

Over the course of an oil spill, knowing the surface oiling extent and where that oil is going is important for identifying what natural resources are potentially in harm’s way and should be protected during the spill response.

In addition, the data analyses from remote sensing technology directly support our ability to determine how natural resources, whether salt marshes or dolphins, are exposed to spilled oil. Both where an oil slick is and how often it is there will affect the degree of potential harm suffered by sensitive species and habitats over time.

In recent years, we’ve been learning how to better use the remote sensing data collected by satellite and aircraft to look at how, where, and for how long coastal and marine life and habitats are impacted by oil spills and then relate this oil exposure to actual harm to these resources.

Large amounts of oil that stay in the same place for a long time have the potential to cause a lot more harm. For example, dolphins in a certain impacted area might breathe fumes from oil and ingest oil from food and water for weeks or months at a time. Without remotely sensed data, it would be nearly impossible to accomplish this task of tying the exact location and timing of oil exposure to environmental harm.

Remote Opportunities

The 2010 Deepwater Horizon oil spill provided us with a number of new opportunities to work with remotely sensed data. For example, we used this technology to examine the large scale features of the circulation patterns in the Gulf of Mexico, such as the fast-moving Loop Current and associated eddies. The Loop Current is a warm ocean current that flows northward between Cuba and Mexico’s Yucatán Peninsula, moves north into the Gulf of Mexico, then loops east and south before exiting through the Florida Straits and ultimately joining the Gulf Stream.

During this oil spill, there were concerns that if the oil slick entered the Loop Current, it could be transported far beyond the Gulf to the Caribbean or up the U.S. East Coast (it did not). NOAA used information from satellite data to monitory closely the position of the slick with respect to the Loop Current throughout the Deepwater Horizon oil spill.

Our partnership with NOAA’s Satellite and Information Service has been a fruitful one, which we expect to grow even more in the future as technology develops further. In January, NOAA Satellites launched the Jason-3 satellite, which will continue to collect critical sea surface height data, adding to a satellite data record going back to 1992. One way these data will be used is in helping track the development of hurricanes, which in turn can cause oil spills.

We hope ongoing collaboration across NOAA will further prepare us for the future and whatever it holds.


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How Do You Keep Killer Whales Away From an Oil Spill?

This is a guest post by Lynne Barre of NOAA Fisheries.

Two killer whales (orcas) breach in front a boat.

NOAA developed an oil spill response plan for killer whales that includes three main techniques to deploy quickly to keep these endangered animals away from a spill. (NOAA)

I sleep better at night knowing that we have a plan in place to keep endangered Southern Resident killer whales away from an oil spill. Preventing oil spills is key, but since killer whales, also known as orcas, spend much of their time in the busy waters around Seattle, the San Juan Islands, and Vancouver, British Columbia, there is always a chance a spill could happen.

The Southern Residents are a small and social population of killer whales, so an oil spill could have major impacts on the entire population if they were in the wrong place at the wrong time.

We’ve learned from past experience with the 1989 Exxon Valdez oil spill that killer whales and other marine mammals don’t avoid oiled areas on their own and exposure to oil likely can affect their populations. New information on impacts from the 2010 Deepwater Horizon oil spill on bottlenose dolphins (a close relative of killer whales) gives us a better idea of how oil exposure can affect the health and reproduction of marine mammals.

Oil spills are a significant threat to the Southern Resident population, which totals less than 90 animals, and the 2008 recovery plan [PDF] calls for a response plan to protect them. We brought experts together in 2007 to help us identify tools and techniques to deter killer whales from oil and develop a response plan so that we’d be prepared in case a major oil spill does happen.

The Sound of Readiness

Killer whales are acoustic animals. They use sound to communicate with each other and find food through echolocation, a type of biosonar. Because sound is so important, using loud or annoying sounds is one way that we can try to keep the whales away from an area contaminated with oil. We brainstormed a variety of ideas based on experience with killer whales and other animals and evaluated a long list of ideas, including sounds, as well as more experimental approaches, such as underwater lights, air bubble curtains, and hoses.

After receiving lots of input and carefully evaluating each option, we developed an oil spill response plan for killer whales that includes three main techniques to deploy quickly if the whales are headed straight toward a spill. Helicopter hazing, banging pipes (oikomi pipes), and underwater firecrackers are on the short list of options. Here’s a little more about each approach:

  • Helicopters are often available to do surveillance of oil and look for animals when a spill occurs. By moving at certain altitudes toward the whales, a helicopter creates sound and disturbs the water’s surface, which can motivate or “haze” whales to move away from oiled areas.
  • Banging pipes, called oikomi pipes, are metal pipes about eight feet long which are lowered into the water and struck with a hammer to make a loud noise. These pipes have been used to drive or herd marine mammals. For killer whales, pipes were successfully used to help move several whales that were trapped in a freshwater lake in Alaska.
  • Underwater firecrackers can also be used to deter whales. These small explosives are called “seal bombs” because they were developed and can be used to keep seals and sea lions away [PDF] from fishing gear. These small charges were used in the 1960s and 1970s to help capture killer whales for public display in aquaria. Now we are using historical knowledge of the whales’ behavior during those captures to support conservation of the whales.

In addition, our plan includes strict safety instructions about how close to get and how to implement these deterrents in order to prevent injury of oil spill responders and the whales. In the case of an actual spill, the wildlife branch within the Incident Command (the official response team dealing with the spill, usually led by the Coast Guard) would direct qualified responders to implement the different techniques based on specific information about the oil and whales.

Planning in Practice

Several killer whales break the surface of Washington's Puget Sound.

Killer whales use sound to communicate with each other and find food through echolocation. That’s why NOAA’s plan for keeping these acoustic animals away from oil spills involves using sound as a deterrent. (NOAA)

After incorporating the killer whale response plan into our overall Northwest Area Contingency Plan for oil spills, I felt better but knew we still had some work to do.

Since finalizing the plan in 2009, we’ve been focused on securing equipment, learning more about the techniques, and practicing them during oil spill drills. Working with the U.S. Coast Guard and local hydrophone networks (which record underwater sound), we’ve flown helicopters over underwater microphones to record sound levels at different distances and altitudes.

With our partners at the Washington Department of Fish and Wildlife and the Island Oil Spill Association, we built several sets of banging pipes and have them strategically staged around Puget Sound. In 2013 we conducted a drill with our partners and several researchers to test banging pipes in the San Juan Islands. It takes practice to line up several small boats, coordinate the movement of the boats, and synchronize banging a set of the pipes to create a continuous wall of sound that will discourage whales from getting close to oil. We learned a few critical lessons to update our implementation plans and to incorporate into plans for future drills.

A large oil spill in Southern Resident killer whale habitat would be a nightmare. I’m so glad we have partners focused on preventing and preparing for oil spills, and it is good to know we have a plan to keep an oil spill from becoming a catastrophe for endangered killer whales. That knowledge helps me rest easier and focus on good news like the boom in killer whale calves born to mothers in Washington’s Puget Sound.

You can find more information on our killer whale response plan and our recovery program for Southern Resident killer whales.

Lynne Barre in front of icy waters and snowy cliffs.Lynne Barre is a Branch Chief for the Protected Resources Division of NOAA Fisheries West Coast Region. She is the Recovery Coordinator for Southern Resident killer whales and works on marine mammal and endangered species conservation and recovery.


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Working to Reverse the Legacy of Lead in New Jersey’s Raritan Bay

Person standing at a fenced-off beach closed to the public.

Some of the beach front at Old Bridge Waterfront Park in New Jersey’s Raritan Bay Slag Superfund site is closed to fishing, swimming, and sunbathing due to lead contamination leaching from metal slag used in the construction of a seawall and to fortify a jetty. (NOAA)

Once lined with reeds, oysters, and resort towns, New Jersey’s Raritan Bay, like many other bodies of water, today is feeling the effects of industrial transformation begun decades ago.

Around 1925, the National Lead Company became the largest lead company in the United States. The company is perhaps best known for their white-lead paints, sold under the Dutch Boy label. One of its many facilities was located in Perth Amboy, a town on the western edge of Raritan Bay, where it operated a lead smelter that generated wastes containing lead and other hazardous substances.

A Toxic Toll

Illustration of a little boy painting used in Dutch Boy paints logo.

This image was adopted by the National Lead Company in 1913 for its Dutch Boy paints. A version of it still is in use today. (New York Public Library Digital Collections/Public domain)

During the late 1960s and early 1970s, slag from National Lead’s lead smelter in Perth Amboy was used as building material to construct a seawall along the southern shoreline of Raritan Bay, several miles to the south of the facility.

Slag is a stony waste by-product of smelting or refining processes containing various metals. Slag, battery casings, and demolition debris were used to fill in some areas of a nearby marsh and littered the marsh and beaches along the bay.

In September 1972, the New Jersey Department of Environmental Protection received a tip that the slag being placed along Raritan Bay at the Laurence Harbor beachfront contained lead.

Over time, contamination from the slag and other wastes began leaching into the water, soil, and sediments of Raritan Bay, which is home to a variety of aquatic life, including flounder, clams, and horseshoe crabs, but evidence of the pollution only became available decades later.

Cleaner Futures

By 2007 the New Jersey Department of Environmental Protection had confirmed high levels of lead and other metals in soils of Old Bridge Waterfront Park on Raritan Bay’s south shore. State and local officials put up temporary fencing and warning signs and notified the public about health concerns stemming from the lead in the seawall.

The following year, New Jersey asked the U.S. Environmental Protection Agency (EPA) to consider cleaning up contaminated areas along the seawall because of the elevated levels of metals. By November 2009, the EPA confirmed the contamination and declared this polluted area in and near Old Bridge Waterfront Park a Superfund site (called Raritan Bay Slag Superfund site). They installed signs and fencing at a creek, marsh, and some beaches to restrict access and protect public health.

In May 2013 EPA selected a cleanup strategy, known as a “remedy,” to address risks to the public and environment from the pollution, and in January 2014 they ordered NL Industries, which in 1971 had changed its name from the National Lead Company, to conduct a $79 million cleanup along Raritan Bay.

Cleanup will involve digging up and dredging the slag, battery casings, associated waste, and sediment and soils where lead exceeds 400 parts per million. An EPA news release from January 2014 emphasizes the concern over lead:

“Lead is a toxic metal that is especially dangerous to children because their growing bodies can absorb more of it than adults. Lead in children can result in I.Q. deficiencies, reading and learning disabilities, reduced attention spans, hyperactivity and other behavioral disorders. The order requires the removal of lead-contaminated material and its replacement with clean material in order to reduce the risk to those who use the beach, particularly children.”

Identifying Impacts

Public health hazard sign about lead contamination on a beach and jetty.

A jetty and surrounding coastal area on Raritan Bay is contaminated with lead and other hazardous materials from slag originating at the National Lead Company’s Perth Amboy, New Jersey, facility. (NOAA)

After the Raritan Bay Slag site became a Superfund site in late 2009, NOAA’s Office of Response and Restoration worked with the EPA to determine the nature, extent, and effects of the contamination. Under a Natural Resource Damage Assessment, NOAA’s Damage Assessment, Remediation, and Restoration Program and our co-trustees, the U.S. Fish and Wildlife Service and the New Jersey Department of Environmental Protection, have been assessing and quantifying the likely impacts to the natural resources and the public’s use of those resources that may have occurred due to the contamination along Raritan Bay.

As part of this work, we are identifying opportunities for restoration projects that will compensate for the environmental harm as well as for people’s inability to use the affected natural resources, for example, due to beach closures and restricted access to fishing.

“The south shore of Raritan Bay is an important ecological, recreational, and economic resource for the New York-New Jersey Harbor metropolitan area,” said NOAA Regional Resource Coordinator Lisa Rosman. “Cleanup and restoration are key to improving conditions and allowing public access to this valuable resource.”

Watch for future updates on progress toward restoration on Raritan Bay.


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Helping a 7-year-old Oceanographer Study Oil Spills in Washington’s Waters

A young boy drops wooden yellow cards off the side of a boat into water.

Dropping the first round of drift cards off a boat in Washington’s San Juan Islands, a kindergartner kicked off his experiment to study oil spills. (Used with permission of Alek)

One spring day in 2014, a shy young boy sidled up to the booth I was standing at during an open house hosted at NOAA’s Seattle campus. His blond head just peaking over the table, this then-six-year-old, Alek, accompanied by his mom and younger sister, proceeded to ask how NOAA’s oil spill trajectory model, GNOME, works.

This was definitely not the question I was expecting from a child his age.

After he set an overflowing binder onto the table, Alek showed me the printed-out web pages describing our oil spill model and said he wanted to learn how to run the model himself. He was apparently planning a science project that would involve releasing “drift cards,” small biodegradable pieces of wood marked with identifying information, into Washington’s Salish Sea to simulate where spilled oil might travel along this heavily trafficked route for oil tankers.

Luckily, Chris Barker, one of our oceanographers who run this scientific model, was nearby and I introduced them.

But that wasn’t my last interaction with this precocious, young oceanographer-in-training. Alek later asked me to serve on his science advisory committee (something I wish my middle school science fair projects had the benefit of having). I was in the company of representatives from the University of Washington, Washington State Department of Ecology, and local environmental and marine organizations.

Over the next year or so, I would direct his occasional questions about oil spills, oceanography, and modeling to the scientists in NOAA’s Office of Response and Restoration.

Demystifying the Science of Oil Spills

A hand-drawn map of oil tankers traveling from Alaska to Washington, a thank-you note on a post-it, and a hand-written card asking for donations.

Alek did a lot of work learning about how oil tankers travel from Alaska to Washington waters and about the threat of oil spills. He even fund-raised to cover the cost of materials for his drift cards. (NOAA)

According to the Washington Department of Ecology, the waters of the Salish Sea saw more than 7,000 journeys by oil tankers traveling to and from six oil refineries along its coast in 2013. Alek’s project was focused on Rosario Strait, a narrow eastern route around Washington’s San Juan Islands in the Salish Sea. There, he would release 400 biodegradable drift cards into the marine waters, at both incoming and outgoing tides, and then track their movements over the next four months.

The scientific questions he was asking in the course of his project—such as where spilled oil would travel and how it might affect the environment—mirror the types of questions our scientists and oil spill experts ask and try to answer when we advise the U.S. Coast Guard during oil spills along the coast.

As Alek learned, multiple factors influence the path spilled oil might take on the ocean, such as the oil type, weather (especially winds), tides, currents, and the temperature and salinity of the water. He attempted to take some of these factors into account as he made his predictions about where his drift cards would end up after he released them and how they would get there.

As with other drift card studies, Alek relied on people finding and reporting his drift cards when they turned up along the coast. Each drift card was stamped with information about the study and information about how to report it.

NOAA has performed several drift card studies in areas such as Hawaii, California, and Florida. One such study took place after the December 1976 grounding of the M/V Argo Merchant near Nantucket Island, Massachusetts, and we later had some of those drift cards found as far away as Ireland and France.

A Learning Experience

A young boy in a life jacket holding a yellow wooden card and sitting on the edge of a boat.

Alek released 400 biodegradable drift cards near Washington’s San Juan Islands in the Salish Sea, at both incoming and outgoing tides, and tracked their movements to simulate an oil spill. (Used with permission of Alek)

Of course, any scientist, young or old, comes across a number of challenges and questions in the pursuit of knowledge. For Alek, that ranged from fundraising for supplies and partnering with an organization with a boat to examining tide tables to decide when and where to release the drift cards and learning how to use Google Earth to map and measure the drift cards’ paths.

Only a couple weeks after releasing them, Alek began to see reports of his drift cards turning up in the San Juan Islands and even Vancouver Island, Canada, with kayakers finding quite a few of them.

As Alek started to analyze his data, we tried to help him avoid overestimating the area of water and length of coastline potentially affected by the simulated oil spill. Once released, oil tends to spread out on the water surface and would end up in patches on the shoreline as well.

Another issue our oceanographer Amy MacFadyen pointed out to Alek was that “over time the oil is removed from the surface of the ocean (some evaporates, some is mixed into the water column, etc.). So, the sites that it took a long time for the drift cards to reach would likely see less impacts as the oil would be much more spread out and there would be less of it.”

During his project, Alek was particularly interested in examining the potential impacts of an oil spill on his favorite marine organism, the Southern Resident killer whales (orcas) that live year-round in the Salish Sea but which are endangered. He used publicly available information about their movements to estimate where the killer whales might have intersected the simulated oil (the drift cards) across the Salish Sea.

Originally, Alek had hoped to estimate how many killer whales might have died as a result of a hypothetical oil spill in this area, but determining the impacts—both deadly and otherwise—of oil on marine mammals is a complicated matter. As a result, we advised him that there is too much uncertainty and not enough data for him to venture a guess. Instead, he settled on showing the number of killer whales that might be at risk of swimming through areas of simulated oil—and hence the killer whales that could be at risk of being affected by oil.

Ocean Scientist in Training

Google Earth view of the differing paths Alek's two drift card releases traveled around Washington's San Juan Islands and Canada's Vancouver Island.

A Google Earth view of the differing paths Alek’s two drift card releases traveled around Washington’s San Juan Islands and Canada’s Vancouver Island. Red represents the paths of drift cards released on an outgoing tide and yellow, the paths of cards released on an incoming tide. (Used with permission of Alek)

“I’d like to congratulate him on a successful drift card experiment,” said MacFadyen. “His results clearly show some of the features of the ocean circulation in this region.”

In a touching note in his final report, Alek dedicated his study to several great ocean scientists and explorers who came before him, namely, Sylvia Earle, Jacques Cousteau, William Beebe, and Rachel Carson. He was also enthusiastic in his appreciation of our help: “Thank you very very much for all of your help! I love what you do at NOAA. Maybe someday I will be a NOAA scientist!”

If you’re interested in learning more about Alek’s study and his results, you can visit his website www.oilspillscience.org, where you also can view a video summary of his project.


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What’s It Like Saving Endangered Baby Sea Turtles in Costa Rica?

This is a post by the Office of Response and Restoration’s Valerie Chu.

Three newly hatched Olive Ridley sea turtles crawl across sand.

Newly hatched Olive Ridley sea turtles make their way toward the ocean. (Used with permission of Julie Watanuki)

I was standing on a sandy Costa Rican beach in the dark of night when I received a hard lesson in the challenges of saving an endangered species. It was my first night volunteering during a seven-day stint on a sea turtle conservation project with the Asociación de Voluntarios para el Servicio en Áreas Protegidas (ASVO) in Montezuma, Costa Rica.

I was charged with protecting sea turtle nests in the ASVO hatchery from poachers and hungry wildlife. On the night of my very first shift, I discovered something terrible had happened. A net covering one of the sea turtle nests had been taken off, and when I looked inside, I found the remains of eight dead baby turtles with just their heads bitten off. When I looked in the back of the hatchery, I noticed that some eggs also had been dug up and eaten.

It was heartbreaking, but furthered my resolve to protect these vulnerable turtles.

Later that night, I discovered who the culprits were—two raccoons. Throughout my shift, the two raccoons would sneak back and I would scare them away each time. Fortunately, the raccoons did not come back in the following days. I was grateful I could play a small part in giving young sea turtles a head start in a long and dangerous journey.

Thinking (and Acting) Globally

Rows of nets cover sandy sea turtle nests, surrounded by fencing.

Volunteers with ASVO place sea turtle eggs collected from Costa Rican beaches into a hatchery with nets covering the nests to protect them from poachers, predators, and other threats. The eggs hatch less than two months later. (Used with permission of Valerie Chu)

Ever since I graduated from the University of Washington in 2012, I’ve wanted to make a positive impact on the dwindling populations of endangered species around the world. I started by volunteering to help orphaned and injured wildlife at the PAWS Wildlife Center near Seattle, Washington (where I recently volunteered during a vegetable oil spill).

As I’ve worked with these animals, my desire of making a global impact on wildlife conservation has increased more and more. In December 2015, I finally got my chance to do it when I traveled to Costa Rica to volunteer with ASVO.

ASVO’s primary goal is to promote active conservation in protected areas, beaches, and rural communities of Costa Rica. They have a volunteer program in around 20 different areas of the country, staffed by some 2,300 volunteers, comprising both local and international volunteers from around the world.

Turtle Time

I was working with Olive Ridley sea turtles, a vulnerable species likely to become endangered in the foreseeable future. Their main threats to survival are direct harvest of adults and eggs, incidental capture in commercial fisheries, loss of nesting habitat, and predators.

During nesting season in Costa Rica, people with ASVO patrol the beaches for female turtles laying their eggs and then gather the eggs and place them at a hatchery. This way, the eggs are protected from poachers, predators, and other threats, both human and environmental. The eggs incubate in the hatchery for between 52 and 58 days before hatching.

Because I had arrived at the end of sea turtle nesting season, I mostly handled the hatchlings and released them into the ocean. When the newly hatched turtles had completely emerged from their nests, I would—while wearing a glove—pick up each one from its nest and head to the ocean. I would then set the turtles down on the sand and watch them walk into the ocean. Some turtles would lose their way because they would walk in the wrong direction or get swept aside by a big wave, so it was my job to make sure they found their way to the ocean without mishap.

Most of my turtle volunteer shifts were at night, and because sea turtles are very sensitive to white light, we could only use a red light while handling them. During night shifts, we were always paired with a second person, allowing us to have one person handle the hatched turtles while the other could stand guard at the hatchery (a very important job, as I observed my first night).

After releasing the turtles, I had to record the number of turtles released, the time of the release, and other notes. Each of the nests held roughly 80-100 eggs, and about 50-70 eggs would hatch, which was an incredible sight.

Don’t Stop (Thinking About What You Can Do)

This trip was an absolutely amazing experience for me. By working with these turtles, I began to fulfill my dream of making a global impact on endangered species populations. On top of that, I was able to connect with other people who care about these issues and form a deep bond over this shared experience.

In the future, I hope to continue volunteering for the conservation of imperiled species like the tiny sea turtles I encountered in Costa Rica. In 2017, I plan to travel to Thailand to work with the endangered elephant population.

But there are lots of ways to protect endangered species at home too. How do you plan to help?

Three people help wash an oiled goose in big soapy wash tubs.

Valerie Chu is an Environmental Scientist who has been providing support for the Office of Response and Restoration’s Emergency Response Division software projects since 2012, when she obtained her undergraduate degree in Environmental Science and Resource Management and then started working with NOAA and Genwest. During her spare time, she volunteers with animal welfare-related causes such as PAWS and Zazu’s House Parrot Sanctuary.


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Our Top 10 New Year’s Resolutions for 2016

2015 written on a sandy beach with an approaching wave.

So long, 2015. Hello, 2016!

Another year has gone by, and we’ve stayed plenty busy: responding to a leaking California pipeline, examining the issue of wrecked and abandoned ships, preparing a natural resource damage assessment and restoration plan for the Gulf of Mexico, and removing 32,201 pounds of marine debris from Hawaii’s Midway Atoll.

You can read more about what we accomplished in the last year, but keep in mind we have big goals for 2016 too. We’re aiming to:

  1. Be better models. This spring, we are planning to release an overhaul of our signature oil spill trajectory forecasting (GNOME) and oil weathering (ADIOS) models, which will be combined into one tool and available via an online interface for the first time.
  2. Tidy up. Our coasts, that is. In the next year, we will oversee marine debris removal projects in 17 states and territories, empowering groups to clean up coastal areas of everything from plastics to abandoned fishing gear.
  3. Use or lose. Nature and wildlife offer a lot of benefits to people, and we make use of them in a number of ways, ranging from recreational fishing to birdwatching to deep-seated cultural beliefs. In 2016 we’ll examine what we lose when nature and wildlife get harmed from pollution and how we calculate and make up for those losses.
  4. Get real. About plastic in the ocean, that is. We’ll be turning our eye toward the issue of plastic in the ocean, how it gets there, what its effects are, and what we can do to keep it out of the ocean.
  5. Explore more. We’ll be releasing an expanded, national version of our DIVER data management tool, which currently holds only Deepwater Horizon data for the Gulf of Mexico, allowing us and our partners to better explore and analyze ocean and coastal data from around the country.
  6. Get artistic. Through our NOAA Marine Debris Program, we are funding projects to create art from ocean trash to raise awareness of the issue and keep marine debris off our coasts and out of our ocean.
  7. Break ground on restoration. Finalizing the draft comprehensive restoration plan for the Gulf of Mexico, following the 2010 Deepwater Horizon oil spill, will bring us one step closer to breaking ground on many restoration projects over the next several years.
  8. App to it. We are working on turning CAMEO Chemicals, our popular database of hazardous chemicals, into an application (app) for mobile devices, making access to critical information about thousands of potentially dangerous chemicals easier than ever.
  9. Train up. We pride ourselves on providing top-notch training opportunities, and in 2016, we already have Science of Oil Spill classes planned in Mobile, Alabama, and Ann Arbor, Michigan (with more to come). Plus, we’ve introduced a brand-new Science of Chemical Releases class, designed to provide information and tools to better manage and plan for responses to chemical incidents.
  10. Get strategic. We are updating our five year strategic plan, aligning it with NOAA’s Ocean Service strategic priorities [PDF], which are coastal resilience (preparedness, response, and recovery), coastal intelligence, and place-based conservation.